[Plugin: SidePosts Widget] exclusive Post

I don’t understand exactly what you mean.

Posts in the sidebar, don’t show in any other page just with one exception. If the post have two or more categories, it will show in the other categories archives (As you published it on that other categories).

If this is not what you mean, please, tell me more what is the problem, and provide a link to see it on your site.

i mean i wont select 1 post from 3 categories in sidebar
and in the same time i wont to view the other posts from same 3 categories in the home page

i wont the filter work on post id not on category id

Well, at the moment this is not possible with this plugin. It just moves one (or more) categories to the sidebar and remove from the home.

The feature that you ask for is not possible with the SidePosts plugin.

waiting for new version ??